7.3 Reversible reactions

Question 1

Define hydrated

Answer 1

water is a part of the ion structure

Question 2

Define water of crystallization

Answer 2

water in the salt

Question 3

Define anhydrous

Answer 3

without water

Question 4

Explain a reversible reaction

Answer 4

a reaction which can go either direction. Products can be reversed back into original reactants.

Question 5

Define equilibrium

Answer 5

the rate of a forward reaction is equal to the rate of a backward reaction. there is no net change in concentrations of reactants and products

Question 6

Explain the difference between equilibrium and reversible reactions

Answer 6

in equilibrium reactions, forward and reverse reactions go on at the same time whereas reversible reactions have 2+ seperate reactions e.g copper (II) sulfate

Question 7

What colour does copper (II) sulfate change into when it’s heated/anhydrous

Answer 7

white

Question 8

What colour does copper (II) sulfate change into when it becomes hydrated

Answer 8

blue

Question 9

State at least 3 of the many features of equilibrium reactions.

Answer 9

1. an equilibrium reaction only takes place in a closed place
2. at equilibrium the concentrations of reactants and products remain fixed
3. at equilibrium forward reaction happens at the same rate as the reverse reaction

Question 10

Explain position of equilibrium

Answer 10

1. it tells us how far the reaction is
2. if product concentration is greater than reactant concentration it is to the right
3. if reactant concentration is greater than product we say it is to the left